/Engine/Source/Runtime/Engine/Classes/Kismet/KismetArrayLibrary.h
Shuffle (randomize) the elements of an array from a specific stream of random data, useful for achieving determinism
static void Array_ShuffleFromStream ( const [TArray](API\Runtime\Core\Containers\TArray)< int32 > & TargetArray, [FRandomStream](API\Runtime\Core\Math\FRandomStream) & RandomStream )